Furniture-clamp



(No Model.)

0. JOSEPH.

FURNITURE CLAMP.

No. 339,061. Patented Mar. 30, 1886.

NIIE rATEs PATENT OFFICE.

CHARLES JOSEPH, OF JEFFERSONVILIJE, INDIANA.

FURNITURE-CLAN! P.

SPECIFICATION forming part of Letters Patent No. 339,061, dated March30, 1886.

Application filed October 15, 1885. Serial No.l79,i1l8. (No model.)

To aZZ whom it may concern:

Be it known that I, CHARLES JOSEPH, a citizen of the United States,residing at Jeffersonville, in the county of Clarke and State ofIndiana, have invented a new and useful Inr provement inFurniture-Clamps, of which the following is a specification.

My invention relates to clamps adapted for use on tables and otherappendages to be tem porarily connected to articles of furniture or thelike, whereby such attached articles can be moved in any direction, allas hereinafter described, illustrated in the drawings, and specificallypointed out in the claim.

Referring to the accompanying drawings, in which like letters ofreference point out similar parts on each figure, Figure 1 represents myimproved clamp as employed on a shelf, table, or on the outer edge ofthe horizontal portion of an article of furniture. Fig. 2 is an enlargeddetail elevation of the clamp in one position. Fig. 3 is a similarelevation inaposition at right angles to that shown in Fig. 1. Fig. A isa sectional view taken on the line a; of Fig. 2. Fig. 5 is a sectionalview on the line 9 y, looking upwardly.

A is the complete casting; A, longitudinal body thereof; A transversebody thereof; a, bore in A; a, bore in A a abutting side of A; B, upperclutch -arm; (l, brace-arm; D, lower clutch arm; E, thumb screw in D; e,swivel at end of E; F, portion of article to which clamp is attached;(,r, thumb-screw to hold shaft II upon a table, bedstead, or any otherarticle.

I illustrate my invention as applied to a device which is shown inLetters Patent No. 252,908, dated January 81., 1882, in order that thoseskilled in the art to which it is allied may fully understand itsfunctions; but I do not limit myself to such appliances, as it can beused for many purposes, such as copyholder for printers, proof-readers,type-writers. and draftsmen, or for music-stands, &c.

My invention therefore consists in a universal clamp which can bescrewed onto any portion of an article of furniture or the like, andadapted to carry a shaft in either a vertical or horizontal position,which shaft carries an attached table or other article that can beextended perpendicularly or horizontally to a predetermined point, andthere firmly held adjusted by means of acommon thumb-screw, G. The stemof said thumbscrewenters with in a screw-threaded aperture at the pointwhere the longitudinal and transverse bodies A A cross each other atright angles.

My invention further contemplates the provision of devices for firmlyconnecting the clamp in position, wherebyitis caused to grip upon threesides, and thereby is prevented from slipping or turning when thepivoted connections are swung around. For this purpose the clutch-arms Band D, which extend outwardly from the main body A, are obliquelyinclined therefrom, their inner surfaces being flat, thus accommodatingsaid clutches their full length to the surface of the article to whichthe clamp is applied. The clutch-arm D is provided with ascrew-tl1readedaperture for admission of the thumb screw E, at the inner end of whichis a swivel-disk, e. In addition to the clutcharmsB and D, and at asuitable angle relative thereto, is a bracearm, G,which extendsoutwardlyfrom the longitndinal body A, also finished flat on its innersurface, adapted to grasp one edge of a bar, table, or the like, andprevent the device from turning, the clutches B andD and brace-arm 0thus in combination firmly embracing the article to which the clamp isattached.

To enable the clamp to be used in either directionthat is, vertically orhorizontally the main stem A,which Iherein call the 1011- gitndinalbody, is provided with a bore, a. its full length. At .right anglesthereto is a transverse stem, A also bored its full length, and it willbe readily understood thatashaft, II, inserted within either of saidbores, can be extended any length either vertically or transversely, andfirmly held within the respective bore by means of the common thumbscrewG, passing within a screwthreaded aperture at the point where the boredstems A A cross each other at right angles, thus dispensing withseparate means of adjustment for each of said members. The abutting sidea of Aas sists,in cooperation with other parts, in securing a firm grip.

I do not claim herein a clamp having bored stems crossing each other atright angles, for I recognize that such construction is shown in PatentsNos. 319,146 and 320,9Il; but in no angular corner, and lay no claimthereto, my

brace-arm 0 having the function to take against any part of the side andedge of an article of furniture to which my clamp is attached.

Having now fully described my invention,r 5 what I claim, and desire tosecure by Letters Patent of the United States, is

A clamp for detachable attachments for furniture, having a hollow mainstem, A, clutches B D, and extending brace-arm C, in combina- 20 tionwith thumb-screw E, substantially as described.

CHARLES JOSEPH.

XVitncsses:

SAML. H. JAOOBSON, OSCAR JOSEPH.

